Railway-car truck.



No. 702,565. Patente'd lune I7, |902. v

H. R. KEITHLEY.

RAILWAY CAR TRUCK.

(Application led Apr. 11, 1902.)

' 2 Sheets-Sheet 2.

(No Mdem UNITED STATES ljATmviry OFFICE.

HERBERT R. KEITHLEY, OF BUFFALO, NEW YORK.

RAILWAY-CAR TRUCK.

SPECIFICATION forming part of `Letters Patent No. 702,565, dated June 17, 1902- Application illed April 1l, 1902. Serial No. 102,437. (No model.)

To cI/ZZ whom t 11e/cry concern:

' Be it known that I, HERBERT R. KEITHLEY, a citizen of the United States, residing at Buffalo, in the county of Erie'and State of'Ne'w York, have invented new and useful Improvements in Railway-CarTrucks, of which the following is a specification.

vThis invention relates to a truck for railway-cars which is built up of commercial rolled shapes and plates.

In my application of United States Letters Patent, Serial No.90,4=70,iil'ed January 20, 1902, is disclosed `a'truck which comprises, briefly stated, a transverse transom and two trussed side frames secured to opposite ends of the transom, each consisting of two pedestals supported from the` axle-boxes by springs and tension and compression chords formed of Z- bars arranged with their webs vertical and secured at their ends to the upper ends of the vpedestals, the truck embodying, as fully described in said application, the essential and distinctive features of the well-known diamond and pedestal types of trucks. The present invention is directed to a truck of the same general type.

The primary object of the invention is to produce a built-up truck-frame of this general type which issimple in construction, is composed of the minimum number of parts, and which has the maximumstrength and rigidity to sustain loads and resist the shocks and strains to which railway-car trucks are subjected.

In the accompanying drawings, consisting of two sheets, Figure l is a side elevation of a railway-car truck embodying the invention. Fig. 2 is an end view showing one half of the truck-frame in elevation and the other half in section, the plane of the sectional portion beingin line 2 2, Fig. 1. Fig. 3 is a plan view ofthe truck.

Like letters of reference referto like parts in the several figures. l

The truck-frame comprises two side trussed frames connected by a transverse transom, each of the side Aframes being composed of pedestals at or near the ends of the truck, and connecting chord members..

AA represent the pedestals, which are preferably, as shown in the drawings, of inverted- U shape and formed of angle-bars arranged upper horizontal portions of the outwardly,

projecting flanges a of the pedestal-s, downwa-rdly-converging inclined portions and a central horizontal portion c connecting the lower ends of the inclined portions. The u'pper or compression chord is provided with end portions cl, which rest upon the end por-I tions of the tension-chord, and is preferably bent to provide a central horizontal portion d' and inclined intermediate portions connect-y ing the central and end horizontal portions. The tension and compression chords-are sepa-V rated at their middleportions by an intervening space for the reception of the ends of the transverse transom. The tension and compression chords are formed of Z-bars arranged with their webs standin g vertically in substang tially the same vertical plane and their flanges projecting horizontally in reverse arrangement-that is to say, the upper flange c2 of the tension-chord and the lower iiange d2 of the compression-chord extend in the same direction from the Webs and are superposed, and the lower iianges c3 of the tension-chord and the `upper flanges cl3 of the compression-chord extend in the same direction, one above the other. The end horizontal portions ofthe' lower :liange of the compression-chord restzdi-y rectly upon and are secured to the end horizontal portions -of the upper flange of the tension-chord by rivets e, and, if necessary, the connection may be strengthened by vertical plates, (shown at F,) which are arranged beside the end portions of the webs of the tension and compression chords between the sep- IOO lateral flanges of the pedestals and the separated flanges of the chords project outwardly from their webs; but obviously the parts can be reversed so that the said flanges will extend inwardly.

Gr represents a horizontal frame member which connects the lower ends of the two pedestals. This member is preferably in the form of an angle bar or plate, with a lower inwardly-projecting flange g, and its ends,which stand vertically beside the inner faces of the vertical flanges of the pedestals, are secured thereto by rivets g passing through the pedestal flanges and the bar or plate. The vertical web of this plate or bar stands against the inner face of the central horizontal portion c of the tension-chord beneath the inwardly-projecting flange thereof.

H represents tie-bolts connecting the legs of the pedestals beneath the journal-boxes. rlhe bolts pass through the lateral flanges of the pedestals and through spacing-sleeves 7L. A tie of any other desired form may be employed.

The transom shown in the drawings for connecting the side frames is preferably composed of two separated channel-beams J, the upper and lower inwardly-projecting horizontal flanges of which are respectively connected by an upper platej, riveted to the upper flanges, and a lower platej', riveted to the lower flanges. The plates may be in the form of cover-plates or short plates at the ends of the transom. The transom extends at each end through the space between the tension and compression chords of the adjacent side frame and is connected at its top to the lower flange of' the compression-chord by rivets y2 and at its bottom to the upper flange of the tension-chord by rivets js. The connection of each end of the transom with the side frame is reinforced and strengthened by an angle-bar K, which is bent in U form around the top and sides of the end of the transom and has its vertical flange connected to the webs of the tension and compression chords by rivets 7c and 7c, respectively, and its horizontal flange connected to the top and sides of the transom by rivets 7a2.

The described construction of the side frames gives great strength throughout, and especially at the ends of the frames, for supporting loads, and great lateral strength and stiffness to resist the side thrusts to which truck frames are subjected in rounding curves. The side thrust of the transom is principally resisted by the rivets connecting the transom with the horizontal flanges of the side-frame chords and the reinforcing angle-bars K.

The truck-frame is built of very few parts and the joints between these parts are so arranged that large riveting area is secured.

I claim as my inventionl. In a trussed side frame for railway-car trucks, the combination of two pedestals, a tension-chord connected to said pedestals and formed with a vertical web and a horizontal flange, and a compression-chord formed with a vertical web and a horizontal flange, the end portions of the webs of said tension and compression chords being arranged in substantially the same plane, and the end portions of the horizontal flange of one member being arranged directly above and riveted to the end portions of the horizontal flange of the other chord, substantially as set forth.

2. In a trussed side frame for railway-car tru cks,the combination of pedestals each having a vertical web and a laterally-projecting flange, a tension-chord formed with a vertical web and a horizontal flange the end portions of the web being connected to the webs of said pedestals, and a compression-chord formed with a Vertical web and a horizontal flange, the end portions of the web of said compression-chord being arranged in substantially the same vertical plane and above the end portions of the web of the tension-chord, and the end portions of the horizontal flange of the compression-chord resting on and riveted to the end portions of the flange of the tension-chord, substantially as set forth.

3. In a trussed side frame foi` railway-car trucks, the combination of two pedestals, a tension-chord connected to said pedestals and formed with a vertical web and a horizontal flange, a compression-chord formed with a vertical web and a horizontal flange, the end portions of the webs of said tension and compression chords being arranged in substantially the same plane, and the end portions of the horizontal flange of one member being arranged directly above and riveted to the end portions of the horizontal flange of the other chord, and vertical plates arranged bosde and secured to the endl portions of the webs of said chords, substantially as set forth.

4. In a trussed side frame for railway-car trucks, the combination of pedestals each having a vertical web and a laterally-projecting flange, a tensioirchord formed with a vertical web and a horizontal flange the end portions of the web being connected to the webs of said pedestais, a compression-chord formed with a vertical web and a horizontal flange, the end portions of the web of said compression-chord being arranged in substantially the same vertical plane and above the end portions of the web of the tension-chord, and the end portions of the horizontal flange of the compression-chord resting on and riveted to the end portions of the flange of the tension-chord, and vertical plates arranged beside and secured to the end portions of the webs of said chords, substantially as set forth.

5. In a trussed side frame for railway-car trucks, the combination of two pedestals, a tension-chord in the form of afZ-bar connected to said pedestals and arranged with its web vertical, a compression-chord in the form of a Z-bar arranged with its web vertical, the end portions of the web of: the compression- IIC chord being arranged in substantially thesame verticalplane and above the end portions of the web of the tension-chord, and the end portions of the lower horizontal flange of the compression-chord resting upon the end portions of the upper horizontal flange ot' the tension-chord, and vertical plates arranged beside and secured to the end portions of thek webs of said chords between the separated flanges thereof, substantially as set forth.

6. The combination of two sidefralnes, the chords of each of which are formed with a ve rti cal web and a horizontal flange, a transom the ends of which project between the chords of said side frames, and bars each having'a vertical web secured to the webs of th'e chords of the adjacent side frame and a flange secured tothe adjacent end of the transom, substantially as set forth.

7. The combination `of two trussed side frames, the chords of each of which are formed with a Vertical web, and a horizontal flange, a transom composed of channel-beams the ends of which project between the chords of said side frames, and bars each having a vertical web secured tothe webs of the chords of the adjacent side frame and a flange securedto the adjacent ends ofv theftransom,`

'of which 'project between the chords of said side frames, plates co'n'nected'tothe upper and ylower flanges of `the transom-channels and to the chords of the side frames, and bars -each having a vertical 'web secured'to the webs of thechords of the adjacent side frame and a flange secured to the adjacent endsof the transom, substantially as set' forth.

Witness my hand this 4th day of April, 1902.

Vitnesses: v

CHAs. W. PARKER, JNO. J. BONNER.

HERBERT R. KEITHLEY. 

